1. Product Information
Product Category: Engine Parts
Brand: OPTIFORCE, DYNAFORCE
Item No: HB-BM-002
Model No: BMW M20, M30
OEM No: 11121726478
Ajusa No: 81004500

2. Features
* Cylinder head bolts are produced using Multi-stage cold forged machine with standard of10.9 Grade HRC 32-38. Our finished cylinder head bolts are normally made with Black oxide or according to OE standards.